Ceiling ventilator



FIG. 1 is a top perspective view of a ceiling ventilator of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a first side view thereof;

FIG. 6 is a second side view thereof; and,

FIG. 7 is a rear view thereof. 

We claim the ornamental design for a ceiling ventilator, as shown and described. 